HMS Hydra (1912)

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For other ships with the same name, see Hydra (disambiguation) § Military vehicles.
HMS Hydra
HMS Hydra during World War I
Royal Navy EnsignUnited Kingdom
Name: HMS Hydra
Builder: John Brown & Company, Clydebank
Yard number: 406[1]
Launched: 19 February 1912[2]
Fate: Sold 9 May 1921[2]
General characteristics
Class and type: Acheron-class destroyer
Displacement: 770 tons
Length: 75 m (246 ft)
Beam: 7.8 m (26 ft)
Draught: 2.7 m (8.9 ft)
Installed power: 13,500 shp (10,100 kW)[1]
  • Two Brown-Curtis Turbines
  • Two Yarrow boilers (oil fired)
  • Two shafts
Speed: 28 knots (52 km/h)[1]
Complement: 72

HMS Hydra was an Acheron-class destroyer of the Royal Navy. She was launched in 1912, fought throughout World War I and was sold for breaking in 1921.

Pennant Numbers[edit]

Pennant Number[2] From To
H50 6 December 1914   1 January 1918
H43 1 January 1918 Early 1919
H94 Early 1919 9 May 1921


She was built by John Brown & Company, Clydebank to an Admiralty design, under the 1910–11 programme. She (and her sisters Hind and Hornet) differed from the standard Admiralty I-class destroyer in only having two shafts instead of three. They had two Brown-Curtis type turbines, and twin boilers.[3] Capable of 28 knots (52 km/h), she carried two 4-inch (100 mm) guns, other smaller guns and two 21-inch (530 mm) torpedo tubes and had a complement of 72 men. She was launched on 19 February 1912.

Operational history[edit]

The Battle of Dogger Bank[edit]

Hydra was with the First Destroyer Flotilla at the Battle of Dogger Bank[4] on 24 January 1915.

The Battle of Jutland[edit]

She was present at the Battle of Jutland[5] on 31 May 1916. Along with the rest of the flotilla, she was transferred to the 3rd Battle Squadron, based at Portsmouth.[6]

Collision with a merchant vessel[edit]

She was in collision with a merchant ship on the night of 11 February 1917 in the English Channel. The captain of Hydra was held liable for the collision because, although the other ship showed him a light, he did not perceive that it was on a crossing course.[7]

Mediterranean Service[edit]

From 1917 the Third Battle Squadron was deployed to the Mediterranean. Hydra was present at the entry of the Allied Fleet through the Dardanelles on 12 November 1918.[8]

Decommissioning and fate[edit]

On 9 February 1921, Hydra collided with the Royal Navy torpedo boat Z 3 in the Weilingen Channel and sank. Z 3 fescued all 72 of Hydra′s crew.[9]

Hydra was sold on 9 May 1921 to Thos W Ward of Portishead[2] for scrap.


  1. ^ a b c "HMS Hydra at the Clyde-built database". Retrieved 2009-02-27. 
  2. ^ a b c d "Arrowsmith List: Royal Navy WWI Destroyer Pendant Numbers". Retrieved 2008-07-01. 
  3. ^ "I-class destroyers (extract from Jane's Fighting Ships of 1919)". Retrieved 2008-10-19. 
  4. ^ "Battle of Dogger Bank - Order of Battle (World War 1 Naval Combat website)". Retrieved 2009-03-08. 
  5. ^ "Battle of Jutland - Order of Battle (World War 1 Naval Combat website)". Retrieved 2009-03-08. 
  6. ^ "HMS Hydra at Battleships-Cruisers website". Retrieved 2009-02-27. 
  7. ^ "Combat Immunity and the Duty of Care - James Rowley judgement (extract)" (PDF). Retrieved 2009-02-27. 
  8. ^ S E Brooks. "The Entry of the Allied Fleet through the Dardanelles". Oxford University. Retrieved 2009-11-11. 
  9. ^ "Warships in collision". The Times (42643). London. 12 February 1921. col D, p. 9.